diff options
Diffstat (limited to 'elf/dl-runtime.c')
| -rw-r--r-- | elf/dl-runtime.c | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/elf/dl-runtime.c b/elf/dl-runtime.c index afc99f6150..9ecf62b436 100644 --- a/elf/dl-runtime.c +++ b/elf/dl-runtime.c @@ -1,5 +1,5 @@ /* On-demand PLT fixup for shared objects. - Copyright (C) 1995-2002,2003,2004,2005,2006 Free Software Foundation, Inc. + Copyright (C) 1995-2006, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -93,14 +93,20 @@ _dl_fixup ( version = NULL; } + /* We need to keep the scope around so do some locking. This is + not necessary for objects which cannot be unloaded or when + we are not using any threads (yet). */ + int flags = DL_LOOKUP_ADD_DEPENDENCY; if (l->l_type == lt_loaded && !RTLD_SINGLE_THREAD_P) - __rtld_mrlock_lock (l->l_scope_lock); + { + __rtld_mrlock_lock (l->l_scope_lock); + flags |= DL_LOOKUP_SCOPE_LOCK; + } - result = _dl_lookup_symbol_x (strtab + sym->st_name, l, &sym, - l->l_scope, version, ELF_RTYPE_CLASS_PLT, - DL_LOOKUP_ADD_DEPENDENCY, NULL); + result = _dl_lookup_symbol_x (strtab + sym->st_name, l, &sym, l->l_scope, + version, ELF_RTYPE_CLASS_PLT, flags, NULL); - if (l->l_type == lt_loaded && !RTLD_SINGLE_THREAD_P) + if ((flags & DL_LOOKUP_SCOPE_LOCK) != 0) __rtld_mrlock_unlock (l->l_scope_lock); /* Currently result contains the base load address (or link map) @@ -181,15 +187,21 @@ _dl_profile_fixup ( version = NULL; } + /* We need to keep the scope around so do some locking. This is + not necessary for objects which cannot be unloaded or when + we are not using any threads (yet). */ + int flags = DL_LOOKUP_ADD_DEPENDENCY; if (l->l_type == lt_loaded && !RTLD_SINGLE_THREAD_P) - __rtld_mrlock_lock (l->l_scope_lock); + { + __rtld_mrlock_lock (l->l_scope_lock); + flags |= DL_LOOKUP_SCOPE_LOCK; + } - result = _dl_lookup_symbol_x (strtab + refsym->st_name, l, &defsym, - l->l_scope, version, - ELF_RTYPE_CLASS_PLT, - DL_LOOKUP_ADD_DEPENDENCY, NULL); + result = _dl_lookup_symbol_x (strtab + refsym->st_name, l, + &defsym, l->l_scope, version, + ELF_RTYPE_CLASS_PLT, flags, NULL); - if (l->l_type == lt_loaded && !RTLD_SINGLE_THREAD_P) + if ((flags & DL_LOOKUP_SCOPE_LOCK) != 0) __rtld_mrlock_unlock (l->l_scope_lock); /* Currently result contains the base load address (or link map) |